Ryobi PBC254YES Manuel D'utilisation page 29

GB
F D E I
MAINTENANCE
STRING REPLACEMENT (Fig. 17-20)
Stop the engine and disconnect the sparking plug
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wire. Hold the string head and unscrew the spool
retainer. Turn clockwise.
Remove the spool from the string head.
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NOTE: Keep the spring attached to the spool.
Remove any old string remaining on the spool.
Cut two pieces of string, each being approximately
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2.7 m long.
Insert the first string (55) into the anchor hole (56)
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in the upper part of the spool. Wind the first string
round the upper part of the spool anticlockwise,
as shown by the arrows on the spool (57). Place
string in the slot on upper spool flange, leaving about
152 mm extended beyond the slot. Do not overfill.
After winding the string, there should be at least
6 mm between the wound string and the outside edge
of the spool.
Repeat above step with second string (58), using the
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bottom part of spool. Do not overfill.
Replace the spool and the spool retainer. Refer to
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"Spool Replacement" earlier in this manual.
BLADE PROTECTOR (Fig. 21)
Always place the blade protector (59) on the blade when
the unit is not in use. The blade protector has clips (2)
round the edges to snap over the blade and keep it in place.
Wear gloves and be cautious when handling the blade.
NOTE: Always remove the blade protector before using
the unit. If not removed, the blade protector could become
a thrown object as the blade begins to turn.
CLEANING THE AIR FILTER (Fig. 22)
Follow these steps to clean the air filter.
Stop the trimmer.
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WARNING
Make sure the trimmer head stops rotating when
you release the trigger. Contact with a rotating
trimmer head could cause personal injury.
Remove the spark plug boot (26).
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Loosen the air filter cover (17) by turning the knob
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(18) counterclockwise.
Remove the air filter cover.
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Remove the air filter (4).
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Clean the air filter with warm soapy water.
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P NL S DK N FIN GR HU CZ RU RO PL SLO HR TR EST LT
English
Rinse the air filter and let it dry completely.
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Work two drops of oil into the air filter.
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Replace the air filter (fits only one way).
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Replace the air filter cover.
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Tighten the air filter cover by turning the knob clockwise.
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Replace the spark plug boot.
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CHECKING THE FUEL CAP
WARNING
A leaking fuel cap is a fire hazard and must be
replaced immediately.
The fuel cap contains a non-serviceable filter and
check valve. A clogged fuel filter causes poor engine
performance. If performance improves when the fuel cap
is loosened, the check valve may be faulty or the filter
may be clogged. Replace the fuel cap if necessary.
REPLACING THE SPARK PLUG (Fig. 23)
This engine uses a NGK CMR7A spark plug. Use an
exact replacement and replace annually. Follow these
steps to replace the spark plug.
Remove the spark plug boot (26).
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Loosen the spark plug (27) by turning it counterclock
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wise with a 5/8 in. socket.
Remove the spark plug.
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Hand thread the new spark plug, turning it clockwise.
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Tighten with a socket. Do not overtighten.
CAUTION
Be careful not to cross-thread the spark plug.
Cross-threading will seriously damage the product.
CLEANING THE SPARK ARRESTER (Fig. 24)
Follow these steps to clean the spark arrester.
Locate the spark arrester (28) through the hole on the
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muffler-side engine cover.
Remove the spark arrester using needle-nosed pliers.
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Clean the spark arrester with a small wire brush.
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Replace the spark arrester.
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STORING THE PRODUCT
Storing the product differs depending on the amount of
time it will be in storage.
To Store the Product Short Term
Follow these steps to store the product short term.
Clean all foreign material from the product.
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LV SK BG